<template>
  <div>
    <!--  面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!--    卡片视图-->
    <el-card class="box-card">

      <el-row :gutter="20">
        <el-col :span="8">
          <!--      搜索与添加区-->
          <el-input v-model="queryInfo.query" placeholder="请输入内容"
                    class="input-with-select" clearable
                    @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!--      用户列表区域-->
      <el-table
        :data="userList"
        style="width: 100%"
        border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column
          prop="username"
          label="姓名"
          width="180">
        </el-table-column>
        <el-table-column
          prop="email"
          label="邮箱"
          width="180">
        </el-table-column>
        <el-table-column
          prop="mobile"
          label="电话">
        </el-table-column>
        <el-table-column
          prop="role_name"
          label="角色">
        </el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" active-color="#13ce66"
                       inactive-color="#ff4949" @change="userStateChanged(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template v-slot="scope">
            <!--            修改按钮-->
            <el-tooltip class="item" effect="dark" content="修改" placement="top">
              <el-button type="primary" icon="el-icon-edit"
                         size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            </el-tooltip>
            <!--            修改用户对话框-->
            <el-dialog title="修改用户" :visible.sync="editDialogVisible"
                       width="50%" @close="editDialogClosed">
              <el-form :model="editForm" :rules="editFormRules" ref="editFormRef"
                       label-width="70px">
                <el-form-item label="用户名">
                  <el-input v-model="editForm.username"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                  <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="电话" prop="mobile">
                  <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
              </el-form>
              <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo()">确 定</el-button>
              </span>
            </el-dialog>

            <!--            删除按钮-->
            <el-tooltip class="item" effect="dark" content="删除" placement="top">
              <el-button type="danger" icon="el-icon-delete"
                         size="mini" @click="removeUserById(scope.row.id)"></el-button>
            </el-tooltip>
            <!--            分配角色按钮-->
            <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini"
                         @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>

    <!--    添加用户对话框-->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%" @close="addDialogClosed">
      <!--      内容主体区域-->
      <span>
        <el-form :model="addForm" :rules="addFormRules"
                 ref="addFormRef" label-width="70px">
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>
          <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>
          <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>
          <el-form-item label="手机" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
        </el-form>
      </span>
      <!--      底部区域-->
      <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
    </el-dialog>
    <!--    添加分配权限对话框-->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed">
      <di>
        <p>当前用户：${{userInfo.username}}</p>
        <p>当前角色：${{userInfo.role_name}}</p>
        <p>分配新角色：
          <template>
            <el-select v-model="selectedRoleId" placeholder="请选择">
              <el-option
                v-for="item in rolesList"
                :key="item.id"
                :label="item.roleName"
                :value="item.id">
              </el-option>
            </el-select>
          </template>
        </p>
      </di>
      <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
    </el-dialog>

  </div>

</template>

<script>
  export default {
    data () {
      //自定义校验规则
      var checkEmail = (rule, value, cb) => {
        //验证邮箱的正则表达式
        const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
        if (regEmail.test(value)) return cb()
        cb(new Error('请输入合法的邮箱'))
      }
      var checkMobile = (rule, value, cb) => {
        const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
        if (regMobile.test(value)) {
          return cb()
        }
        cb(new Error('请输入合法的手机号'))
      }
      return {
        //获取用户列表的对象
        queryInfo: {
          query: '',
          //当前页数
          pagenum: 1,
          pagesize: 2
        },
        //所有的用户列表
        userList: [],
        total: 0,
        //控制添加用户对话框的显示和隐藏
        addDialogVisible: false,
        //控制添加修改用户的对话框
        editDialogVisible: false,
        //控制分配角色对话框
        setRoleDialogVisible: false,
        //查询用户信息的表单
        editForm: {},
        //添加用户的表单数据
        addForm: {
          username: '',
          password: '',
          email: '',
          mobile: ''
        },
        //添加用户表单校验规则
        addFormRules: {
          username: [
            {
              required: true,
              message: '请输入用户名',
              trigger: 'blur'
            }, {
              min: 3,
              max: 10,
              message: '用户名的长度在3~10个字符之间',
              trigger: 'blur'
            }],
          password: [
            {
              required: true,
              message: '请输入密码',
              trigger: 'blur'
            }, {
              min: 6,
              max: 15,
              message: '密码的长度在6~15个字符之间',
              trigger: 'blur'
            }
          ],
          email: [
            {
              required: true,
              message: '请输入邮箱',
              trigger: 'blur'
            }, {
              validator: checkEmail,
              trigger: 'blur'
            }],
          mobile: [
            {
              required: true,
              message: '请输入手机',
              trigger: 'blur'
            }, {
              validator: checkMobile,
              trigger: 'blur'
            }]
        },
        //添加修改表单的校验规则
        editFormRules: {
          email: [
            {
              required: true,
              message: '请输入邮箱',
              trigger: 'blur'
            }, {
              validator: checkEmail,
              trigger: 'blur'
            }],
          mobile: [
            {
              required: true,
              message: '请输入手机',
              trigger: 'blur'
            }, {
              validator: checkMobile,
              trigger: 'blur'
            }]
        },
        //需要被分配角色的用户信息
        userInfo: {},
        //  角色列表
        usersList: [],
        //已选中的角色id值
        selectedRoleId: ''
      }
    },
    //生命周期函数
    created () {
      this.getUserList()
    },
    methods: {
      async getUserList () {
        const { data: res } = await this.$http.get('users', {
          params: this.queryInfo
        })
        if (res.meta.status !== 200) return this.$message.error('获取用户列表失败')
        console.log(res.data.users)
        this.userList = res.data.users
        this.total = res.data.total
      },
      //监听pageSize的改变
      handleSizeChange (newSize) {
        this.queryInfo.pagesize = newSize
        this.getUserList()
      },
      //监听页码值改变的事件
      handleCurrentChange (newPage) {
        this.queryInfo.pagenum = newPage
        this.getUserList()
      },
      //监听switch状态的改变
      async userStateChanged (userinfo) {
        const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
        if (res.meta.status !== 200) {
          userinfo.mg_state = !userinfo.mg_state
          return this.$message.error('更新用户状态失败')
        }
        this.$message.success('更新用户状态成功')
      },
      //监听添加用户对话框的关闭事件
      addDialogClosed () {
        this.$refs.addFormRef.resetFields()
      },
      // 点击按钮，添加新用户
      addUser () {
        this.$refs.addFormRef.validate(async valid => {
          if (!valid) return
          // 可以发起添加用户的网络请求
          const { data: res } = await this.$http.post('users', this.addForm)

          if (res.meta.status !== 201) {
            this.$message.error('添加用户失败！')
          }

          this.$message.success('添加用户成功！')
          // 隐藏添加用户的对话框
          this.addDialogVisible = false
          // 重新获取用户列表数据
          this.getUserList()
        })
      },
      //展示编辑用户的对话框
      async showEditDialog (id) {
        const { data: res } = await this.$http.get('users/' + id)
        console.log(res)
        if (res.meta.status !== 200) {
          return this.$message.error('查询用户信息失败')
        }
        //将查询到的数据保存到表单上
        this.editForm = res.data
        this.editDialogVisible = true

      },
      //监听修改用户对话框的关闭事件
      editDialogClosed () {
        this.$refs.editFormRef.resetFields()
      },
      //表单的修改信息并提交
      editUserInfo () {
        //首先对表单进行预验证
        this.$refs.editFormRef.validate(async valid => {
            if (!valid) {
              return
            }
            //发起用户修改请求
            const { data: res } = await this.$http.put('users/' + this.editForm.id,
              {
                email: this.editForm.email,
                mobile: this.editForm.mobile
              })
            if (res.meta.status !== 200) {
              this.$message.error('更新用户信息失败!')
            }

            //关闭对话框 刷新数据列表 提示修改成功
            this.editDialogVisible = false
            this.getUserList()
            this.$message.success('修改用户信息成功!')
          }
        )
      },
      //删除用户信息
      async removeUserById (id) {
        //弹框进行提示是否删除
        const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        //如果用户确认删除，则返回值为字符串 confirm
        //如果用户取消了删除，则返回值为字符串 cancel
        if (confirmResult !== 'confirm') {
          return this.$message.info('已经取消删除')
        }
        const { data: res } = await this.$http.delete('users/' + id)
        console.log(res)
        if (res.meta.status !== 200) return this.$message.error('删除失败')
        this.$message.success('删除用户成功！')
        this.getUserList()

      },
      async setRole (userInfo) {
        this.userInfo = userInfo
        //在展示对话框之前获取所有角色列表
        const { data: res } = await this.$http.get('roles')
        if (res.meta.status !== 200) return this.$message.error('获取角色列表失败')
        this.rolesList = res.data
        this.setRoleDialogVisible = true
      },
      //点击按钮分配角色
      async saveRoleInfo () {
        if (!this.selectedRoleId) return this.$message.error('请选择要分配的角色！')
        const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
        if (res.meta.status !== 200) return this.$message.error('更新角色失败!')
        this.$message.success('更新角色成功！')
        this.getUserList()
        this.setRoleDialogVisible = false
      },
      //  监听对话框的close事件
      setRoleDialogClosed () {
        this.selectedRoleId = ''
        this.userInfo = {}
      }
    },

  }
</script>

<style scoped>

</style>
